New YorK AGRICULTURAL EXPERIMENT STATION. 327 
DETAILED RESULTS. 
The condition of apples Nos. 23 to 26, Table VI, at time of 
final examination, September 28, is noted below. 
Apple No. 23.— Twenty-three adult females alive, with 7 to 10 
dead larve under the scale of each; 7 adult females dead; 17 
dead larve, free on surface of apple; 42 scales at hibernating 
stage alive. Remaining scales dead. 
Apple No. 24.— Fifty-three adult females alive; 240 young 
alive; 80 scales dead and remainder missing. 
Apple No. 25.— Highteen adult females alive; 20 young scales 
in hibernating stage and 210 larve alive. Remaining scales 
dead or missing. | | 
Apple No. 26.— Fifty-three adult females living; apple literally 
covered. with young scales in all stages of development. 
CONCLUSIONS. 
The treatment of the plate as previously described seems to 
have brought about marked chemical changes, doubtless in the 
breaking down of the sulphides, so that the effect of the product 
obtained from spraying the plate seems to have had little ap- 
parent effect upon the scales. A comparison of this: lot with 
those scales that had not been treated shows that the percentage 
of living scales and the offspring produced during the period 
under observation was no greater than in this case. Likewise, 
the results of this experiment are somewhat contradictory of 
experiments I and II. But the results of these latter are so 
conclusive that the apparent contradiction by een Vv 
must be explained by the difference in treatment. 
EXPERIMENT VI. 
This experiment was the same as No. V, except that the pre- 
cipitate instead of the liquid was used. Enough of the liquid 
was used, however, to form a thick paste with the precipitate. 
The object of this experiment was to determine the effect of 
the precipitate upon the scales when used practically alone. 
The results are given in Table VI. 
